Finding the Fourth Proportional to 64,641.04, 89,204.39 and 37,778.15

Step by Step Solution

1. Step 1: Write the proportion equation
   64,641.04 : 89,204.39 = 37,778.15 : x
2. Step 2: Convert to fraction form
   64,641.04/89,204.39 = 37,778.15/x
3. Step 3: Cross multiply
   64,641.04x = 89,204.39 × 37,778.15
4. Step 4: Simplify right side
   64,641.04x = 3,369,976,500.09
5. Step 5: Solve for x
   x = 3,369,976,500.09/64,641.04
6. Step 6: Final answer
   x = 52,133.70